CVE-2024-49977 (GCVE-0-2024-49977)

Vulnerability from cvelistv5 – Published: 2024-10-21 18:02 – Updated: 2025-11-03 22:23
VLAI?
Title
net: stmmac: Fix zero-division error when disabling tc cbs
Summary
In the Linux kernel, the following vulnerability has been resolved: net: stmmac: Fix zero-division error when disabling tc cbs The commit b8c43360f6e4 ("net: stmmac: No need to calculate speed divider when offload is disabled") allows the "port_transmit_rate_kbps" to be set to a value of 0, which is then passed to the "div_s64" function when tc-cbs is disabled. This leads to a zero-division error. When tc-cbs is disabled, the idleslope, sendslope, and credit values the credit values are not required to be configured. Therefore, adding a return statement after setting the txQ mode to DCB when tc-cbs is disabled would prevent a zero-division error.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: b4bca4722fda928810d024350493990de39f1e40 , < e33fe25b1efe4f2e6a5858786dbc82ae4c44ed4c (git)
Affected: 2145583e5995598f50d66f8710c86bb1e910ac46 , < b0da9504a528f05f97d926b4db74ff21917a33e9 (git)
Affected: 521d42a1c24d638241220d4b9fa7e7a0ed02b88e , < 5d43e1ad4567d67af2b42d3ab7c14152ffed25c6 (git)
Affected: a71b686418ee6bcb6d6365f7f6d838d9874d9c64 , < 03582f4752427f60817d896f1a827aff772bd31e (git)
Affected: b8c43360f6e424131fa81d3ba8792ad8ff25a09e , < e297a2bf56d12fd7f91a0c209eb6ea84361f3368 (git)
Affected: b8c43360f6e424131fa81d3ba8792ad8ff25a09e , < 837d9df9c0792902710149d1a5e0991520af0f93 (git)
Affected: b8c43360f6e424131fa81d3ba8792ad8ff25a09e , < 675faf5a14c14a2be0b870db30a70764df81e2df (git)
Affected: f01782804147a8c21f481b3342c83422c041d2c0 (git)
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    Linux Linux Affected: 6.10
Unaffected: 0 , < 6.10 (semver)
Unaffected: 5.10.227 , ≤ 5.10.* (semver)
Unaffected: 5.15.168 , ≤ 5.15.* (semver)
Unaffected: 6.1.113 , ≤ 6.1.* (semver)
Unaffected: 6.6.55 , ≤ 6.6.* (semver)
Unaffected: 6.10.14 , ≤ 6.10.* (semver)
Unaffected: 6.11.3 , ≤ 6.11.* (semver)
Unaffected: 6.12 , ≤ * (original_commit_for_fix)
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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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